Azure site in Joomla is gone

Hi. I generated my Joomla for Microsoft Azure platform. Once in my Joomla admin, in my global config page, where the "Servers" info is located all the names were populated. But since I have not been able to connect my videos in Azure to apear in Joomla I thought maybe the server frmat name was incorrect. So I chose from the dropdown to Change from MYSQL to Azure SQL. But once I did that the site immediately dissappered and now I get the following message "Error displaying the error page: Application Instantiation Error: Database Query Class not found. "
How can I access my site now? ... You mention a Cpane? Sorry I'm not a developer so kindly Help!